Note that doctors say that there's no evidence that they are necessary, or that they even help. Also note that they can flush out good bacteria in your digestive tract and cause bowel problems, and that they are not recommended for people with certain digestive disorders (doesn't say which ones, but better safe than sorry--probably includes IBS).

I have heard a lot of bad things about detox diets myself. Mainly that it just throws your body off balance since you can only eat certain things and may be lacking essential vitamins and minerals. I'm sure a lot of it is gimick and its hard to distinguish the truly good ones from the trendy ones. As long as you are putting healthy food in your mouth, there should be no need for any kind of detox. They should leave the detoxing to alcohol and drug dependancys IMHO.

Most cultures have some form of fasting, usually for religious purposes, but I don't know if I've ever heard of anything being done for more than three days in a row. That some people fast for weeks, even months, is way crazy! There was an article on Slate.com that was analyzing calorie-restrictive diets and wondering if they weren't just an acceptable-sounding form of anorexia. The author, who is a recovering anorexic herself, saw many, many parallels between herself and the people on these "diets". You have to be careful with that sort of thing.

I just posted this because I know some people on here will try just about anything to try and make their IBS better, and since so many are already limiting what they eat because it makes them worse, it might not be a big jump to not eat anything at all and see what happens then. But the evidence seems to point out that it can make worse bowel problems.